2. 25.07.2003Beam Tests - TCC1 Upcoming Beam Tests TT40TT40 2 x 24 hours, September/October 2003 TI8TI8 4 x 24 hours, September 2004 LHC Injection test (?)LHC Injection test (?) 2 weeks, April 2006 TI2 commissioningTI2 commissioning April 2007 LHC commissioningLHC commissioning April onwards 2007

3. 25.07.2003Beam Tests - TCC2 TI8 – test with beam September – October 2004September – October 2004 (possibly Jeune Genevois to minimise impact) Length 4 x 24 hoursLength 4 x 24 hours IntensityIntensity LHC pilot beam foreseen for the most part Up to 2.5 x 10 11 ppp allowed for Extract beam to TED at end of TI8

4. 25.07.2003Beam Tests - TCC3 Objectives Verify equipment functionality:Verify equipment functionality: Bumpers, Extraction Kickers, Extraction Septa, Magnetic elements, Power converters, Interlocks, control system, surveillance systems, vacuum Commission beam instrumentationCommission beam instrumentation BPMs, BLMs, BCT, Screens, BST Beam measurement & correctionBeam measurement & correction Trajectory acquisition and correction, check correction scheme Reproducibility of trajectory Matching from SPS Optics in line, tilts, matching to LHC Aperture Check corrector and BPM polarities 12 hour run to validate thermal behaviour of tunnel12 hour run to validate thermal behaviour of tunnel Multi-bunch extractionMulti-bunch extraction Check RP assumptionsCheck RP assumptions Preparation for LHC injection test…Preparation for LHC injection test…

5. 25.07.2003Beam Tests - TCC4 Requirements General services: cooling, power, ventilation, emergency stops, phones (required for system tests)General services: cooling, power, ventilation, emergency stops, phones (required for system tests) Control system: infrastructure,fibres, networks, FEs, timing, application software, etc..Control system: infrastructure,fibres, networks, FEs, timing, application software, etc.. Prior tests and preparation time (already from TT40 see that dry runs are essential)Prior tests and preparation time (already from TT40 see that dry runs are essential) Special procedures: in & out of test modeSpecial procedures: in & out of test mode Special interlocks: SPS intensity, beam loss, BPMsSpecial interlocks: SPS intensity, beam loss, BPMs Beams: LHC pilot available 24/24Beams: LHC pilot available 24/24 Monitoring: already under development for TT40Monitoring: already under development for TT40 Radiation Protection:Radiation Protection: Monitors outside zone, ventilation monitoring etc. Decommissioning procedures: to be definedDecommissioning procedures: to be defined Radiation survey, removal of access gates etc

6. 25.07.2003Beam Tests - TCC5 Impact Status after test (residual activation)Status after test (residual activation) However TI8 already a Simple Controlled Area Cost of testCost of test Powering: (96 x 36 MW x 30 CHF/MWh ~ 50 kCHF ) Temporary measures: Access doors + cables + procedures, interlocks, extra beam stop (160x80x80 cm 3 of iron surrounded by 80 cm of concrete) Decommissioning 4 days out of the SPS physics schedule Impact on other workImpact on other work LHCb access (yes with film badge + intensity interlocks) Other installation (CNGS) QRL commissioning: RA87, UA87 & closed part of 8-1 Magnet transport into 8-1 Installation 7-8

7. 25.07.2003Beam Tests - TCC6 Radiation Simulations have been performed by Radiation Protection Group e.g. high energy muons… TED UX85 Graham Stevenson et al

8. 25.07.2003Beam Tests - TCC7 Radiation Planned intensities:Planned intensities: Maximum assumed: 50% x 2.5 x 10 11 ppp i.e. 5.4 x 10 14 protons in 24 hours Remnant dose rates (after one day irradiation & one day cooling)Remnant dose rates (after one day irradiation & one day cooling) Along side TED: 120  Sv/h Downstream face of TED: 3 mSv/h Will have a extra beam stop (Iron/concrete) after the TED Some irradiation of concrete walls around TED UX85UX85 On Beam line 2.5  Sv/h After test : area around TED  Simple Controlled Radiation Area

9. 25.07.2003Beam Tests - TCC8 Access Temporary zone at end of TI8Temporary zone at end of TI8 Gates interlocked: cables pulled back to SPS interlock systemGates interlocked: cables pulled back to SPS interlock system Gate 1 prevents access from Point 1Gate 1 prevents access from Point 1 Gate 2 prevents access from UX85Gate 2 prevents access from UX85 Gate 3 prevents access from US85Gate 3 prevents access from US85 Gate 4 at UJ88 junction with TI8 – some form of separation since TED becomes Simple Controlled Area after tests.Gate 4 at UJ88 junction with TI8 – some form of separation since TED becomes Simple Controlled Area after tests. Radiation monitors required in R88, UX85 and US85.Radiation monitors required in R88, UX85 and US85.

10. 25.07.2003Beam Tests - TCC9 TI8 conclusions 4 days with low intensity beams4 days with low intensity beams Cost and impact limited but…Cost and impact limited but… …careful planning and integration is required…careful planning and integration is required Provides important milestone on the path to LHC commissioningProvides important milestone on the path to LHC commissioning Controls, Beam Instrumentation, Operations, Interlocks etc. Usefully de-coupled from LHC commissioning Resources, problem resolution and as a milestone

11. 25.07.2003Beam Tests - TCC10 LHC Injection test 2006 OutlineOutline MotivationMotivation Proposed testsProposed tests Pre-requisites & boundary conditionsPre-requisites & boundary conditions IssuesIssues Radiation / INB Access LHCb ImpactImpact CostCost ConclusionsConclusions

12. 25.07.2003Beam Tests - TCC11 Injection test in 2006 The installation schedule version 1.7 recently approved includes a ‘possible injection test’ - foreseen in April 2006 3.3 km of the LHC including one experiment insertion and a full arc About 30 cells with a phase advance of ~ 3000 degrees total.!

13. 25.07.2003Beam Tests - TCC12 Layout Point 7 Point 8

14. 25.07.2003Beam Tests - TCC13 Beam is the most powerful diagnostic tool in accelerators: Beam gives us the only 100% sure diagnostic that the aperture in the cold machine is free and has the expected size: Arc, IR8, crossing angle. Beam witnesses all electro-magnetic fields in the vacuum pipe and tells us about them: polarity of design fields, field errors to 1 unit, large offsets between beam and magnet, corrector cabling. Motivation I Check that it works, no problems with ongoing installation, things are as they should be

15. 25.07.2003Beam Tests - TCC14 Checks with beam Check the aperture Get a handle on b3 etc. and corrector polarities Linear Optics checks. Handle on quad & BPM errors See Ralph’s talk at Chamonix

16. 25.07.2003Beam Tests - TCC15 Motivation II Pre-commission essential acquisition and correction procedures Beam provides the only way to verify the proper functioning of the diagnostics: timing, BPM resolution, BPM cabling, BPM offsets, BLM resolution Beam tests our control and correction systems (correctors, cabling, control system, software, procedures, …): Bumps, trajectory correction, kicker timing, injection stability, beam threading Hardware exposure to beam will allow first reality checks of assumptions: quench limits, BLM thresholds

17. 25.07.2003Beam Tests - TCC16 Acquisition and Correction BPMs Threading Beam Loss Monitors Resolution: 0.05 × 10 9 p And the control system has to work.

18. 25.07.2003Beam Tests - TCC17 Pilot with 5 × 10 9 p does not quench if losses are diluted over ~ 5 m. Uncritical studies – no danger for equipment. Idea: Deflect beam into a magnet.  bump over 100 m or single kick. Measure: Quench threshold. BLM rate versus kick or bump amplitude. Check the quench limit Reference: J.B. Jeanneret et al, LHC Project Report 44. B. Dehning, E. Gschwendtner. Pilot intensity Damage level (few turns) 50 m 2.5 cm 500  rad

19. 25.07.2003Beam Tests - TCC18 De-magnetization cycle negligible decay after degaussing… … but useless for operation (giant SB)! How about injection tests ? degaussing blip standard cycle Luca Bottura

20. 25.07.2003Beam Tests - TCC19 Motivation III Integration: full-blown system wide integration test.Integration: full-blown system wide integration test. One step beyond hardware commissioning. Field test beam related equipment and instrumentation such as: power converters, kickers, septa, dumps, pickups, synchronisation, timing, injectors and get them all working together Stress test controls infrastructure and all that goes with it. Fully validate integration Highlight oversights, debug problems. There will be problems.

21. 25.07.2003Beam Tests - TCC20 Motivation IV BIG MILESTONE:BIG MILESTONE: Beam instrumentation, Controls Interlocks Access Radiation Protection Operations And others… These are absolutely critical for the effective exploitation of the machine and it cannot be stressed enough how important it is that they are ready and tested when we come to commission the whole machine.

22. 25.07.2003Beam Tests - TCC21 Motivation Operationally, any time spent in 2006 on an injection test will be paid back during the first year’s commissioning, enabling us to deliver physics faster. Commissioning of the first sector will have to be done. We will have to wrestle with the problems that will be encountered during this phase. Discovering the problems during a sector test will give us a year at least to resolve any problems, perform a critically analysis of the performance of the systems involved and implement improvements.

23. 25.07.2003Beam Tests - TCC22 De-motivation Too late to change anythingToo late to change anything Going to be busy enough anywayGoing to be busy enough anyway CostCost Things will change, going to have to re-do it anyway…Things will change, going to have to re-do it anyway… What do you do if you can’t get beam around after 2 weeks?What do you do if you can’t get beam around after 2 weeks?

24. 25.07.2003Beam Tests - TCC23 Test outline Coupled with high operational inefficiencies

25. 25.07.2003Beam Tests - TCC24 Beam Pilot Beam for the most part:Pilot Beam for the most part: Single bunch Intensity: 5 to 10 x 10 9 protons per bunch Below quench limit if losses are diluted over > 5 m. 2 orders of magnitude below damage threshold. Clear aim to minimise losses and use beam sparingly when we know where it’s going. Total intensity: 2 x 10 13 protonsTotal intensity: 2 x 10 13 protons

26. 25.07.2003Beam Tests - TCC25 Impact We will need: Sector 7-8 fully commissioned and cold Inner triplet, stand alone magnets right of IP8 cold, Injection region fully commissioned TI 8 operational Access system operational Appropriate radiation protection measures

27. 25.07.2003Beam Tests - TCC26 Impact On-going installation of 3-4, 5-6, 6-7On-going installation of 3-4, 5-6, 6-7 before, during and after the test. disruption of installation in sector 6-7 Hardware commissioning 4-5Hardware commissioning 4-5 Test will pull in resources from the above in preparation for the test and during the test itself Force the installation schedule of some systemsForce the installation schedule of some systems e.g. access and interlocks Consequences for installation and commissioning LHCbConsequences for installation and commissioning LHCb Radiation after the event: 7-8 potentially to be declared simple controlled radiation area with some knock-on effectsRadiation after the event: 7-8 potentially to be declared simple controlled radiation area with some knock-on effects ResourcesResources

28. 25.07.2003Beam Tests - TCC27 Impact Address the cost of this lot later

29. 25.07.2003Beam Tests - TCC28 LHCb It has to be ensured that the experimental cavern at point 8 will be treated as a surveyed area after the injection test and not as a controlled area.It has to be ensured that the experimental cavern at point 8 will be treated as a surveyed area after the injection test and not as a controlled area. This it has to be ensured that no part of the beam pipe or nearby detector will receive a radiation dose that would leave either activated after the test.This it has to be ensured that no part of the beam pipe or nearby detector will receive a radiation dose that would leave either activated after the test. Final vacuum chamber in placeFinal vacuum chamber in place VELO only partially installed, not baked out, shouldn’t be a problemVELO only partially installed, not baked out, shouldn’t be a problem “The experiments are in favour of the test, provided that adequate precautions are taken to ensure that the continued installation of LHCb, after the test, is not disturbed in any way.”

30. 25.07.2003Beam Tests - TCC29 LHCb TDI: Can be closed as far as possible during injection optimisation Reasonable aperture  50 mm  18  No crossing angle Detuned insertions Smaller beam size With care should be able to minimise losses. Monitoring required.

31. 25.07.2003Beam Tests - TCC30 Radiation ~ 3000 shots giving a totally intensity of 2 x 10 13 protons~ 3000 shots giving a totally intensity of 2 x 10 13 protons Following simulations by RP group: typical dose rates for 1 day irradiation and 1 day cooling (at 50% efficiency):Following simulations by RP group: typical dose rates for 1 day irradiation and 1 day cooling (at 50% efficiency): TEDTED Along side TED: 6  Sv/h Downstream face of TED: 140  Sv/h Would have a extra beam stop after the TED Some irradiation of concrete walls around TED ARCARC Assume beam is lost uniformly along the sector between point 8 and point 7: negligible Assume beam is lost in one dipole repeatedly: 4 and 10  Sv/h This figures would be diluted even further by the extended cooling periodThis figures would be diluted even further by the extended cooling period

32. 25.07.2003Beam Tests - TCC31 Radiation cont. Low level of activationLow level of activation For prudence we say we are assuming restrictions appropriate to simple controlled area.For prudence we say we are assuming restrictions appropriate to simple controlled area. Dump can be removed within a day of test end, concrete in area will have some activation.Dump can be removed within a day of test end, concrete in area will have some activation. It will be anticipated that:It will be anticipated that: TI8 the injection region the arc and the area around the the dump will be “Simple Controlled Areas” after the test. This means film badges. If the RP survey after the test finds negligible activation the Simple Controlled Areas can be reclassified as “Surveyed Areas”If the RP survey after the test finds negligible activation the Simple Controlled Areas can be reclassified as “Surveyed Areas”

33. 25.07.2003Beam Tests - TCC32 Radiation Expected situation after the test Passage into sector 8-1 possible without film badge via UA87 and UJ88

34. 25.07.2003Beam Tests - TCC33 Monitoring Radiation monitoringRadiation monitoring Radiation Monitors will be provided by TIS RAMSES have injection test as milestone LHCb: 4-5 planned under RAMSES not designed to measure zero. Extra monitors required, 2-3 PMI monitors, modern data monitoring. Beam Loss MonitorsBeam Loss Monitors Sensitive to losses at 1% level with pilot bunch intensity Beam IntensitiesBeam Intensities Beam extracted, injected and to dump to be logged RPG survey after the eventRPG survey after the event

35. 25.07.2003Beam Tests - TCC34 INB Tell them that we are going to perform the testTell them that we are going to perform the test Tell them estimated intensities, estimates of likely activation, and estimates of personnel dose.Tell them estimated intensities, estimates of likely activation, and estimates of personnel dose. Propose, and then discuss with them possible approaches for appropriate restrictionsPropose, and then discuss with them possible approaches for appropriate restrictions Report to be presented in 2004 at the same time as the Dossier de Sûreté.Report to be presented in 2004 at the same time as the Dossier de Sûreté.

36. 25.07.2003Beam Tests - TCC35 Access Enrico Cennini

37. 25.07.2003Beam Tests - TCC36 UJ67 versus near IR7 Contours of muon dose rates in sector 6-7. Distances in cm. Contours calculated for pilot pulses only 0.1  Sv/h is at 500 m. from the IP Several nominal bunches would be 100 times higher From a RP perspective it is more convenient to put the gate close to IP6 Graham R. Stevenson However a sizable fraction of 6-7 could be opened up for continued installation during the test

38. 25.07.2003Beam Tests - TCC37 How much is this lot going to cost?

39. 25.07.2003Beam Tests - TCC38 Cost AB Target and DumpsTarget and Dumps TDI, TCDD already installed and commissioned Dump right of point 7 Capital: reusable dump of some sort e.g TED, detailed installation planning effort required Installation: 2 days, at least 3 experienced persons Removal: 2 days, at least 3 experienced persons Extra beam stop: straightforward Beam TransferBeam Transfer Kickers, already installed and commissioned Manpower costs: minimal ControlsControls Very favourable, would act as important milestones and test of final system. Clearly advanced effort required but no irrecoverable, additional costs.

40. 25.07.2003Beam Tests - TCC39 Cost AB BDIBDI Test would be extremely welcome. Would clearly generate a lot of work: preparation, test, data analysis, presentation, but… 6 BLMs per quadrupole foreseen. Optionally (NB) extra BLMs for quench test – smother quad/dipole. Would need to pull temporary fibres, install readout electronics. 1 fibre per 6 BLMs, say 180 BLMs, 30 fibres* 300 m... around 50,000 CHF Temporary installation of BCT near beam dump, if required. Would need to be asked for, BDI learn nothing. Hardware reusable. 20 -30 kCHF for manpower Temporary installation of screen near beam dump. Again manpower. Hardware reusable. 20 -30 kCHF for manpower Hermann & Rhodri

41. 25.07.2003Beam Tests - TCC40 Cost AB Power ConvertersPower Converters Test will generate more work for the PO group. Manpower cost and it's especially the availability of the specialists. The problem of injection test is the re-commissioning of the sector 7-8 and insertion in 8-1 in parallel with the commissioning of two other sectors (3-4 and 4-5). Could we postpone the commissioning of the sector 3-4 ? Good milestone for the project but a big perturbation. Manpower not planned for in the staffing plan. It's a pity not to have it at the end of the sector 7-8 commissioning… No big extra cost for materials The main gain for PO group would be to check the reproducibility of the current with beam. Freddy Bordry

42. 25.07.2003Beam Tests - TCC41 Cost AB OperationsOperations 2 weeks+ out of SPS physics schedule for 2006, would delay CNGS Running costs of SPS Power consumption (40 MW*168*30 CHF/MWh) ~ 400 kCHF Might argue that this comes out of normal exploitation budget. TI8: preparation and re-commissioning (couple of days) power consumption (36MW*50%*168*30 CHF/MWh) ~ 100 kCHF Start SPS before April? CERN can request to switch to the French EDF grid as of the 15/3. Between the 15/3 and the 1/4 critical days occur frequently. No impact on magnet tests. RFRF Fast timing references, pre-pulses etc. Cost minimal. ABPABP Favourable, lot to learn…

43. 25.07.2003Beam Tests - TCC42 Cost: Installation InstallationInstallation Sector 6-7 scheduled for: Cryo-magnet transport to 6-7 Interconnection work Warm MQ, D3, D4 & Q6 in LSS.7L With precise dates, staying to schedule and 6 months advanced notice: No additional cost. 6-7 installation delayed by 2 weeks. Do not compromise free access through the sector after the test… Therein lies a potentially expensive problem… Sylvain Weisz & Jean-Philippe Tock

44. 25.07.2003Beam Tests - TCC43 Contractors The installation will be performed in the LHC main tunnel and its annexes. These zones are classified as non-radiation controlled areas and consequently no special radiation protection requirements are asked from the company. After the test a part of the LHC tunnel might have to be classified as simple controlled radiation area. In this case the work site conditions might change. The workers to intervene there have to be belong to the category of Radiation Workers. In the Legislation of most CERN members states, personnel would be classified as "Category B Radiation Workers" according to the European Council Directive 96/29 Euratom. (class B < 6 mSv/y) = MORE MONEY  1 to 1.5 kCHF per person

45. 25.07.2003Beam Tests - TCC44 Cost: Installation Problem: Contractors that have to pass through the tunnel have to be classified for work in radiation areas.Problem: Contractors that have to pass through the tunnel have to be classified for work in radiation areas. How many people implicated? Transport of magnets, 20 people maximum (at any one time) - maximum 5 magnets a night, average 3 Interconnections: would be finished in 8-1 and 7-8, so passage of personnel and materials via other IPs. Do they need to come through these sectors? Apparently not. (40 people if they do) Transport of material: point 6 could be used (but access facilities not identical to point 8) Work in controlled zone after the test: Electricians – no maintenance foreseen, very limited access required. Cabling: work in sector 8-1 & 7-8 after test – should be minimal Maintenance: vacuum, cryogenics, power converters… Cleaners Warm magnet installation right of 7 after test It will be a Simple Controlled Area, film badges will be required to work there. (Cabling, infrastructure etc.) Estimate around 100 people

46. 25.07.2003Beam Tests - TCC45 Cost AT: Vacuum Temporary dump installation right IP7Temporary dump installation right IP7 Planning/instrumentation and mechanical design work: 2 weeks design work Capital cost: 4*7.3 m standard vacuum chamber: 12 kCHF (chamber reusable) Preparation and installation manpower: 2 – 3 man weeks Q6 preferably installed before test. Warm elements right IP8Warm elements right IP8 Should be installed, and commissioned already. NEG not activated, mobile pumping if required. MKI need to be fully baked out Beam instrumentation must be ready on time. NB Late elements face a surcharge…NB Late elements face a surcharge… Paul Cruickshank

47. 25.07.2003Beam Tests - TCC46 Cost AT: Cryogenics Sectors will be left floating i.e. normally around 55 to 75 K, but up to 300 K if there are problems. Standard cryogenic operations should be able to perform the cool down in about 3-4 days from floating; up to 14 days from higher temperatures.Sectors will be left floating i.e. normally around 55 to 75 K, but up to 300 K if there are problems. Standard cryogenic operations should be able to perform the cool down in about 3-4 days from floating; up to 14 days from higher temperatures. Team sized to work on one sector at a time and would have to stop work on the ongoing commissioning of other sectors while re-commissioning 7-8Team sized to work on one sector at a time and would have to stop work on the ongoing commissioning of other sectors while re-commissioning 7-8 One Month SECTOR [kCHF] ELECTRICAL POWER 122 HELIUM20 LIQUID NITROGEN 206 OPERATORS53 MAINTENANCE21 TOTAL422 Total will be reduced by a factor of 2 if the sector has not warmed up and the test is not done in parallel with another cold sector Luigi Serio NB: need Q5.R8  IP8 as well

48. 25.07.2003Beam Tests - TCC47 Hardware re-commissioning VacuumVacuum Continued on-line monitoring of status after commissioning – things should be OK CryogenicsCryogenics  (Operators in total) + Engineers/Technical engineers effort from commissioning elsewhere QPS and Energy Extraction (AT/MEL)QPS and Energy Extraction (AT/MEL) 1 week for system tests, 1 week for cross-system checks. 3 to 4 people fulltime InterlocksInterlocks Powering: see Freddy’s commentsPowering: see Freddy’s comments Cross system testsCross system tests Plus HW supervision/on-call during testPlus HW supervision/on-call during test TOTAL MANPOWER  10 MAN MONTHS plus a 2-3 week delay

49. 25.07.2003Beam Tests - TCC48 Test after HWC 7-8… Avoid the need for re-commissioning 7-8Avoid the need for re-commissioning 7-8 Avoid splitting teams across more than two sectorsAvoid splitting teams across more than two sectors Avoid cost of re-cool downAvoid cost of re-cool down The case for having the test immediately after the commissioning of sector 7-8 Roberto Saban Risk… Plus possible delay in installation of inner triplets beam screens & Q6.R7 Roberto Saban

50. 25.07.2003Beam Tests - TCC49 Cost ST: Access AccessAccess PM76, PM85 as for LHC PZ85: infrastructure as for LHC Access Gates: installation and removal of gates in 6-7 and 8-1 (in foreseen positions) 7 kCHF manpower Specially installed gate for the test in 6-7 (Gate plus lock, cabling, junction box, display etc.) 20 kCHF + 5 kCHF for long distance cabling. Interlock chain – loops should be in place Commissioning of system seen as useful milestoneCommissioning of system seen as useful milestone Pierre Ninin

51. 25.07.2003Beam Tests - TCC50 Cost TIS: RP Simulations of potential doses, preparation of report for INBSimulations of potential doses, preparation of report for INB 5 man months (4 months down already!) Radiation Survey, installation, data handling etc.Radiation Survey, installation, data handling etc. 1 technician hired earlier than planned 90 kCHF Additional monitors in LHCb & 6-7Additional monitors in LHCb & 6-7 40 – 50 kCHF Graham Stevenson, Doris Forkel-Wirth

52. 25.07.2003Beam Tests - TCC51 Cost summary AB

53. 25.07.2003Beam Tests - TCC52 Cost summary – not AB Warily Supportive

54. 25.07.2003Beam Tests - TCC53 TOTALS – highlights CAPITALMANPOWER AB 50 kCHF (optional) plus incidentals 80 kCHF plus workload SPS – power 400 kCHF (energy budget?) - TI8 - power 100 kCHF - TIS/RP 30 – 50 kCHF 100 kCHF Access 25 kCHF 7 kCHF Vacuum 30 kCHF (recoup) 10 kCHF Cryogenics 200 - 400 kCHF Included in capital total + HWC Installation- 100 KCHF (radiation qualified personnel). Hardware commissioning - 10 man months + delay TOTAL ~1 MCHF 380 kCHF All numbers approximate – planning as it stands

55. 25.07.2003Beam Tests - TCC54 Timing of test PS and SPS will be starting up after 2005 shutdownPS and SPS will be starting up after 2005 shutdown SPS under energy consumption restrictions before April 1 st. Estimate 4 weeks for cold checkout & re-commissioning Injection test pushed to end April unless provision is made to start SPS earlier.Injection test pushed to end April unless provision is made to start SPS earlier. For LHCb, April 2006 is the most convenient time slot for the injection test.For LHCb, April 2006 is the most convenient time slot for the injection test. Taken in account in their planning A delay of the sector test by more than 10 weeks beyond April 2006 would jeopardize the LHCb overall commissioning. The interruption to the LHCb installation due to the injection test should not exceed three weeks.  2 weeks at end April/May 2006

56. 25.07.2003Beam Tests - TCC55 Conclusions 2 weeks low intensity beam, end April/May 20062 weeks low intensity beam, end April/May 2006 MotivationMotivation Check Commission Integration Milestone Politics The intensities we plan to use are low, with care there should be only a low level of activation.The intensities we plan to use are low, with care there should be only a low level of activation. Assume restrictions appropriate to simple controlled area where required Very careful putting beam through LHCb, with appropriate monitoring we can ensure it remains a surveyed area.Very careful putting beam through LHCb, with appropriate monitoring we can ensure it remains a surveyed area. The test could go a long way to easing the commissioning of the whole machine.

57. 25.07.2003Beam Tests - TCC56 Conclusions Planning of HWC needs to fully incorporate test:Planning of HWC needs to fully incorporate test: Manpower/Capital costs Could save ~0.5 MCHF by having test follow 7-8 HWC and suitable placement of 8-1 HWC With appropriate planning costs to installation should be low.With appropriate planning costs to installation should be low. Main inconvenience will be the need to declare the parts of the ring Simple Controlled Areas with knock- on effects for access after the test.Main inconvenience will be the need to declare the parts of the ring Simple Controlled Areas with knock- on effects for access after the test. Experiments OK, AB enthusiastic, AT, ST & EST supportive with provisos. RP very supportive.Experiments OK, AB enthusiastic, AT, ST & EST supportive with provisos. RP very supportive.

58. 25.07.2003Beam Tests - TCC57 Acknowledgements Paul Proudlock, Roger BaileyPaul Proudlock, Roger Bailey Volker Mertens, Brennan Goddard, Jan UtyhovenVolker Mertens, Brennan Goddard, Jan Utyhoven Graham Stevenson, Doris Forkel-WirthGraham Stevenson, Doris Forkel-Wirth Roberto Saban, Felix Rodriguez-MateosRoberto Saban, Felix Rodriguez-Mateos Paul CruickshankPaul Cruickshank Ralph AssmannRalph Assmann Andre Faugier, Ghislain Roy, Enrico CenniniAndre Faugier, Ghislain Roy, Enrico Cennini And everyone else I’ve bugged.And everyone else I’ve bugged.